Map of All 6,092 Mississippi Dams
Mississippi has 6,092 dams in the National Inventory of Dams — and 349 are classified as high hazard (6% of the state’s total), meaning failure would likely cause loss of life. 140 Mississippi dams are both high-hazard and in poor or unsatisfactory condition.
Use the interactive Mississippi dams map below to explore every dam in the state, color-coded by hazard level. Click any dam for its condition assessment, last inspection date, and Emergency Action Plan status. Or view the full US Dams interactive map to compare Mississippi to every other state.
Hazard
Condition
Purpose
Mississippi Dams by the Numbers
- 6,092 total dams in Mississippi
- 349 high hazard — failure would likely cause loss of life
- 68 significant hazard
- 4,510 low hazard
- 273 in poor or unsatisfactory condition (152 poor, 121 unsatisfactory)
- 140 Mississippi dams are both high-hazard AND in poor/unsatisfactory condition
Data source: US Army Corps of Engineers, National Inventory of Dams (NID).
The Tallest Dams in Mississippi
The tallest dam in Mississippi is Jamie L. Whitten Lock and Dam at 120 feet, completed in 1983. The 10 tallest Mississippi dams from the National Inventory of Dams:
| Dam | Height | Year | Primary Purpose | Condition | County |
|---|---|---|---|---|---|
| Jamie L. Whitten Lock and Dam | 120 ft | 1983 | Navigation | Not Available | Tishomingo |
| Sardis Dam | 117 ft | 1940 | Flood Risk Reduction | Not Available | Panola |
| Enid Dam | 110 ft | 1952 | Flood Risk Reduction | Not Available | Yalobusha |
| Grenada Dam | 103 ft | 1954 | Flood Risk Reduction | Not Available | Grenada |
| Okhissa | 100 ft | 2005 | Recreation | Not Rated | Franklin |
| Arkabutla Dam | 92 ft | 1943 | Flood Risk Reduction | Not Available | DeSoto |
| John C. Stennis Lock and Dam | 82 ft | 1980 | Navigation | Not Available | Lowndes |
| Okatibbee Dam | 72 ft | 1968 | Flood Risk Reduction | Not Available | Lauderdale |
| Natchez State Park Dam | 70 ft | 1984 | Recreation | Satisfactory | Adams |
| Ms07095 Lake Dam | 68 ft | – | Recreation | – | Holmes |
High-Hazard Mississippi Dams in Poor Condition
The most concerning dams are those classified as high-hazard that also carry a Poor or Unsatisfactory condition rating — 140 dams in Mississippi. Notable examples:
- Kelly Greenwood Lake Dam (60 ft, Tallahatchie County) — Recreation, Poor condition
- Lake Pushmataha (56 ft, Neshoba County) — Recreation, Poor condition
- Second Creek WS Str No. 6a Dam (53 ft, Adams County) — Flood Risk Reduction, Poor condition
- Second Creek WS Str No. 7 Dam (52 ft, Adams County) — Flood Risk Reduction, Poor condition
- Big Sand Watershed Structure Y-32-17 Dam (52 ft, Carroll County) — Flood Risk Reduction, Unsatisfactory condition
Filter the interactive US Dams map by hazard and condition to see all of them on one view.
Dam Safety in Mississippi
Dam safety in Mississippi is overseen by the state dam safety program, in coordination with federal regulators: the US Army Corps of Engineers, the Bureau of Reclamation (for federal water projects), the Tennessee Valley Authority where applicable, and the Federal Energy Regulatory Commission (FERC) for licensed hydropower dams. Emergency Action Plans are typically required for high-hazard dams under state regulations.
Frequently Asked Questions
How many dams are in Mississippi?
Mississippi has 6,092 dams in the National Inventory of Dams tracked by the US Army Corps of Engineers: 349 high hazard, 68 significant hazard, and 4,510 low hazard.
What is the tallest dam in Mississippi?
The tallest dam in Mississippi is Jamie L. Whitten Lock and Dam at 120 feet, completed in 1983. It is primarily a navigation structure.
How many Mississippi dams are in poor condition?
273 Mississippi dams are currently rated as being in Poor or Unsatisfactory condition. Of those, 140 are also classified as high-hazard — meaning failure would likely cause loss of life.
